Attachment for gas-burners.



Patented Mar. l3, I900.

T. J. BU$H.

ATTACHMENT FOR GAS BURNEBS.

(Applicationflled June 16, 1899.)

Nb. 645,4l6.

(Ho ModaL) WITNESSES: @043. W

4 z BY fW M ATTORNEY 1-H: Ncnms versus 0a.. womuma. wAsmnm'clu. n. c.

THOMAS J. BUSH, or LEXINGTON, KENTUCKY.

ATTACHMENT FOR, GAS-BU RN ERS.

SPECIFICATION forming part of Letters Patent N o. 645, .l= 16, dated March 13, 1900.

' Application filed lune 16, 1899- Serial No 720,773. (No model.)

To all whom itmay concern:

Be it known that I, THOMAS J. BUSH, a citizen 6f the United States, and a resident of Lexington, in the county of Fayette, State of Kentucky, have invented a certain net and useful Improvement in Attachments for Gas- Bu rners,'of which the following is a specification.

My invention relates to an attachment for ordinary gas-burners of the types, known as the batwing and the fish-tail and which produce what I herein term a flat flame.

It is well known that the eificiency'of a gasburner of certain capacity depends largely upon the draft given the flame and the amount of oxygen infused in to it. v

The principal object of my invention is to provide an attachment without the use of a chimney wherebya flat gas-flame may be furnished with ample draft, thereby steadying the flame, increasing the illuminating capacity, and decreasing the amount of smoke or carbon deposit emitted in burning.

To these ends my invention consists in the various novel and peculiar combinations and arrangements of the several parts of the device, all as hereinaftei fully described and then pointed out in the claims. I

I have illustrated a type of my invention in the accompanying drawings, wherein- Figure 1 is'a perspective view of my draft attachment mounted upon an ordinary-gasburner,which is shown as emitting a flat flame. Fig. 2 is a cross-section taken on a plane extending centrally through the attachment.

Referring to the drawings, in which like numbers of reference designate like parts, 2 is an ordinary gas-burner, having a slit mouth 8, which produces a flat flame 4, as shown in the drawings. Upon this burner is mounted a body or hood comprising two long sides 5 and 6,which converge upwardly, and two vertical ends 7 and 8, making a four-sided hood which is A-shaped in cross-section. Preferably the entire base of the hood is open, as shown at 9, and the top is formed with a comparatively-narrow slit or opening 10, extending from one end to the other. Each of the long-sides at its center is formed with an outwardly-bowed part 11, which together make up a suitable opening for the upward passage of the cylindrical gas-burner 2. This position on the same.

hood being made. preferably of a suitable metal is somewhat resilient, so that the two long sides clamp the burner with a slight spring-pressure, and thereby retainit in fixed I, however, preferably provide the hood with a centrally-located collar or holder 12, fixed across the base thereof and provided with upwardly-extending spring fingers or tubes 13 for receiving the burner and to give additional stability to the attachment when placed upon it.

This draft attachment is, placed over the burner 2, so that the same projects up through it, as shown in Fig. 1, and the attachment is adjusted on the burner until the draft slit or opening 10 in the top or crest of the hood lies in the plane of the flat flame. When so placed and the flame is on, a considerable draft is created through the upwardly-converging draft-chamber within the hood lying upon each side of the burner, and this draft making a forcible exit from the crest or top of the hood throws a steady anduniform stream of air upwardly against the flame in the plane there of, thereby increasing the air-supplyand steadying the flame. This increased air-supply increases in corresponding degree the illuminating power of the flame and decreases in corresponding degree the smoke or carbon deposit emitted from the flame.

It will be observed that the shape of the hood may be changed as desired, so long as provision is made for directing upwardly against the Hat flame a steady stream of air in the-same plane as the flame. I therefore vention to the specific construction herewith shown, as it is obvious that various modifications may be made in the same without de-v parting from the spirit ofthe invention.-

Having thus described my-invention, what I claim, and desire to secure by Letters Patcut, is-

1. Adraft attachment fora gas-burner producinga so-called flatjflame, thesame consisting in a body or hood adapted to be placed centrally upon the burner beneath the mouth thereof and provided with one or more draftchambers, a narrow elongated opening'leading from said draft-chamber through the top of the hood at opposite sides of the burner to wish to be understood as not limiting my intoo lie in the planeof the flame and beneath the v 2 A draft attachment for a gas-burner pro-,

ducing a so-called flat flame, the same consisting in a body or hood provided with oneor more upwardlyconverging draft-chambers and having a substantially-central opening for the burner to extend through, a'na'rrow elongated draft-opening in the top. of said hood upon opposite sides of the central bu rneropening and communicating with said draftchamber andadapted to lie in'the same as the gas-flame and beneath the same when the attachment is adjusted upon the burner, substantially as andfor the purpose set forth.

A draft attachment for a gas-burnerpros dueing a so-called flat flame, the same cornhood having upwardly-converging and closed at its ends andhaving prising a long sides a broad opening at the base and a comparatively-narrow elongated opening along the top for the exit of the draft, a substantially centrally located openin'g'for the passage of the burner said draftopening 'lying upon' two plan e" 1 opposite sides of said burner -"opening and 5 adapted to stand in the same plane'withthe vflame when the attachment is adjusted on the burner, substantiallyas and for the, purpose set forth;v 4 4;, A draft attachment for a gas-burner produoing a so-called fiat flame, the same comprising a'hoodA-shaped in cross-section an having a wide opening at the base and a narrow opening along' the top, the ends of the hood being closed,-the central-portion of the hood beingslightly bowed out on the two opposite sides for receiving a cylindrical burner, and a collar or holder mounted centrally with in the hood for the passage of the burner, substantially as andfor the purpose set forth.-

In testimony whereof I have hereunto afnesses.

THOMAS J. BUSH.

\ Witnesses: v

R. G. MONROE, i E. S. BROUGHTON.

fixed my signature int-he presence of two wit- 

